A1351 - Allegro MicroSystems

A1351 High Precision Linear Hall Effect Sensor IC

TheA1351 device is a high precision, programmable linear Hall effect sensor IC with a pulse width modulated (PWM) output. The duty cycle, D, of the PWM output signal is proportional to an applied magnetic field. The A1351 device converts an analog signal from its internal Hall element to a digitally encoded PWM output signal. The coupled noise immunity of th.

Features

•Pulse width modulated (PWM) output provides increased noise immunity compared to an analog output
•1 mm case thickness provides greater coupling for current sensing applications
•Push/pull output
•Customer-programmable offset and sensitivity
•Factory-programmed 0%/°C Sensitivity Temperature Coefficient
•Programmability at end-of-line
•Selectable unipolar or bipolar quiescent duty cycles
•Selectable sensitivity range between 0.055% and 0.095% D/G
•Temperature-stable quiescent duty cycle output and sensitivity
•Precise recoverability after temperature cycling
•Output duty cycle clamp.